HORTICULTURE 



September 2, 1916 



Some Important New or Little Known Trees and Shrubs 



During the past eighteen years a 

 large number of species of hardy, or 

 relatively hardy trees and shrubs have 

 been introduced to cultivation from 

 eastern Asia and North America, to 

 scientific institutions, parks and gar- 

 dens, and a large number of varieties, 

 crosses, and hybrids amongst some 

 genera of ornamental shrubs, have 

 been introduced from various sources 

 to cultivation. We propose to mention 

 a limited number that have been par- 

 tially tested and appear promising In 

 the city parks, Rochester, N. Y. 



SviMXGAS. Perhaps the most popu- 

 lar of all garden shrubs are the lilacs, 

 and our parks and gardens have been 

 wonderfully enriched during late years 

 with superb varieties and hybrids that 

 have completely outclassed many older 

 varieties that we thought could not be 

 improved upon. The introduction of 

 new species of lilacs from Western 

 China, by E, H. Wilson, through the 

 Arnold Arboretum, has been a wonder- 

 ful revelation. 



Syringa reflexa is one of the most 

 beautiful lilacs from Western China 

 and has flowered with us for two years. 

 It has curving panicles of rosy pink 

 flowers, eight to ten inches long, 

 about June 1st. It has good, ample 

 foliage. Syringa Sweginzowii, from 

 eastern Asia, has loose dainty clusters 

 of fragrant white flowers, shading to 

 pink. It flowers about June 10th and 

 is a strong, vigorous shrub. Syringa 

 tomentella, from western China, has 

 a compact, much-branched habit and 

 produces clusters of rosy-pink flowers 

 about June 7th. Mr. Wilson states 

 that when he first saw this lilac grow- 

 ing in the wild, he thought it was the 

 most beautiful lilac he had ever seen. 

 It is very variable in its characters 

 and some forms of it were named S. 

 Wilsonii, and S. Rehderiana. The 

 specific name tomentella, however, 

 stands for the group. Syringa Wolfli 

 is p. native of Manchuria, and came 

 into cultivation through Petrograd 

 botanists a few years since. It is in 

 full flower from June 1st to 5th, and 

 has panicles six to seven inches long 

 of rosy-purple flowers, and blooms 

 most profusely. It has very distinct 

 oval-shaped leaves. 



A few years since, the Lemoines of 

 Prance introduced a most important 

 race of early-flowering lilacs to culti- 

 vation by hybridizing Syringa affinis 

 Giraldi, with some of the earliest 

 flowering vulgaris forms. The former 

 is an early blooming lilac from north- 

 ern China that has been in cultivation 

 a good many years. These new hybrids 

 blossom much earlier than the vulgaris 

 group. Four of them have flowered 

 with us for several years. Lamartine 

 has single, elegant panicles of mauve 

 pink flowers; Mirabeau, single pani- 

 cles of mauve lilac blossoms. Berreyer 

 has double, large panicles of mauve 

 flowers, and Vauban, double, numerous, 

 prominent panicles of rosy mauve 

 flowers. 



It is a somewhat difficult task to 

 select a few of the best of the most 

 recent single and double flowering 



By JOHN DUNBAR, Botanist, S. A. F. 



lilacs amongst the vulgaris varieties 

 and hybrids, when these varieties run 

 into the hundreds. Amongst single, 

 various shades of blue and bluish lilac 

 and bluish violet, we would recom- 

 mend Crampel, Decaisne, Gilbert, 

 President Lincoln and Ronsard; in 

 single, lilac pink shades, lilarosa, 

 Lovaniensis, macrostachia and Sher- 

 raerhornii. Lilarosa, Lovaniensis and 

 Schermerhornii have been in cultiva- 

 tion for a good many years. A very 

 distinct shade in salmon pink is shown 

 in Lucie Baltet, and in this particular 

 color it stands alone: in shades of pur- 

 ple red to violet red, Cavour, Danton, 

 Laplace, Marceau, Milton and Monge. 

 In single white, Kate Harlin, Madame 

 Florent Stepman, and Vestale. Ves- 

 tale is perhaps the best single white 

 flowering lilac in cultivation. The 

 large pure white blossoms, partly re- 

 flexed, on large compound clusters, 

 give it a most distinctive appearance. 

 In double crimson red. purple red, 

 and violet red. we would recommend 

 Adelaide Dunbar, Charles Joly, De 

 Saussure and Paul Hariot; double 

 blue, bluish lilac and bluish violet, 

 Godron. Marechal Lannes, Olivier de 

 Serres. President Viger and Victor 

 Lemoine: double lilac pink shades. 

 Comte de Kerchove, Edouard Andre. 

 Louis Henry, President Fallieres 

 and Waldeck-Rousseau; double white. 

 Dame Blanche, Jeanne d'Arc, Madame 

 de Miller, Miss Ellen Willmott and 

 Rabelais. 



Dki'tzias. Some beautiful Deut- 

 zias have been introduced from west- 

 ern China and a large array of most 

 beautiful hybrids and varieties have 

 been introduced by the Lemoines. The 

 long branching sprays of these new 

 hybrid Deutzias in white, rosy pink, 

 and purplish red flowers, should be 

 splendid plant.s for cut flower purposes 

 for florists. Deutzia discolor with its 

 white, dense corymbs of flowers is a 

 very showy shrub. Although dis- 

 covered a good many years since, it Is 

 only lately that we secured it. Deutzia 

 glomeruliflora is a neat shrub from 

 western China, with grayish white 

 leaves, and produces very numerous, 

 dense, white, small flower corymbs. 

 Deutzia longiflolia from western China 

 is an upright branching shrub with 

 oblong leaves. The flowers are ex- 

 ceedingly variable, shading through 

 rosy pink to purplish red. 



Amongst the numerous hybrids and 

 varieties, perhaps some of the most 

 distinct are: D. rosea campanulata in 

 which the long curving branches, 

 covered with the bell-shaped white 

 flowers are remarkably beautiful; D. 

 rosea carminea has profuse light pink 

 flowers, tinted carmine outside; D. 

 rosea floribunda has very large blos- 

 soms, porcelain white, tinted with 

 rosy pink outside of the petals; D. 

 rosea grandiflora is a gem, and has 

 large, well expanded blossoms, white, 

 flushed with pink and carmine buds; 

 D. carnea lactea has milky white blos- 

 soms in great profusion and sulphur 

 white anthers; D. excellens has most 

 distinct flowers, bearing a resemblance 



to hawthorn blossoms. The pure 

 white flowers are borne on loose pani- 

 cles; D. elegantissima is an elegant 

 flowering shrub with slender branches 

 thickly covered with corymbs of rose 

 tinted flowers and with carmine buds. 

 It is true that some of the above hy- 

 brid Deutzias were produced twelve to 

 fifteen years since, but they are still 

 little known. 



Pii 1 1. A DELP H u s. Philadelphus 

 Magdalenae is an interesting new 

 species from western China, with 

 showy white flowers and distinct, 

 ovate, acuminate-toothed leaves. It 

 was first introduced from China by 

 Maurice de Vilmorin and re-introduced 

 by E. H. Wilson. P. purpurascena is 

 another new Chinese species. It is a 

 strong-growing shrub with somewhat 

 drooping branches. The pleasingly 

 fragrant, white, bell-shaped blossoms 

 are produced freely from all of the 

 branchlets. 



A very large number of beautiful 

 varieties and hybrids of Philadel- 

 phuses have been sent out by the 

 Lemoines during recent years and we 

 will mention only a few of them. 

 Philadelphus Albatre is very florifer- 

 ous and the slender branches produce 

 dense clusters of pure white, very 

 double flowers which are particularly 

 attractive to many people. P. Argen- 

 tine is an erect-growing shrub and 

 produces large double white flowers 

 over two inches wide. The petals 

 have a distinctly imbricated appear- 

 ance. P. Banniere is a gem. It is a 

 tall-growing shrub and the semi- 

 double, very large, pure white blos- 

 soms are borne abundantly on the 

 branches and branchlets. P. Mer de 

 Glace is a tall-growing shrub and has 

 perhaps the largest blossoms of any 

 Philadelphus. The snow white blos- 

 soms are double to semi-double and 

 have somewhat the appearance of a 

 rose. P. Virginal is surely a shrub 

 for the florists to grow. It is vigorous 

 in habit and produces an extraordinary 

 profusion of pure white double flowers 

 in dense clusters, and the branches 

 hang down under their weight. It 

 would appear to be a fine shrub for 

 cut flower purposes. A number of 

 years since, there was considerable at- 

 tention given in some nursery circles 

 to the first appearance of P. purpureo 

 maculatus, which showed a distinct 

 reddish pinlv color on the lower part 

 of the corolla. I remember how enthu- 

 siastic the late John Charlton of Roch- 

 ester, N. Y., was in describing this 

 Philadelphus to me. snnie time liefore 

 I had an opportunity of seeing it. A 

 number of varieties in this group have 

 since aiipeared and have all flowered 

 with us. Amongst tlieiu are P. Etoile 

 Rose, P. Romeo, P. Sihylle and P. 

 Sirene, and they all show single flow- 

 ers in various shades of rosy pink to 

 purplish red on the lower part of the 

 corolla. They are small growing 

 bushes and are somewhat tender. The 

 red color has been derived from a 

 Mexican species. In our judgment they 

 are very pretty and are desirable gar- 

 den plants. 



